Symptoms of Major Depressive episode (most of the day and on most days)

1. Depressed mood

2. Diminished pleasure or interest

3. Significant weight loss when not dieting, or weight gain or a decrease in apetite

4. Insomnia or Hypersomnia

5. Psychomotor retardation or agitation

6. Fatigue or decreased energy.

7. Feelings of worthlessness or excessive guilt

8. Decreased ability to think, concentrate, and make decisions.

9. Recurrent ideas of death and suicide.

A depressiv episode must have dysophoric (depressive) mood or anhedonia (loss of interest or pleasure) or both.

Manic Episode

Involve an abnormally and persistently altered mood state that involves elevation of mood, expansiveness, or irritability that lasts for at least one week and causes significant distress or impairment in normal areas of functioning. In addition, the person demonstrates persistence of at least three of: inflated self-esteem, and/or gradiosity, less of a need for sleep, pressured or excessive speech, flight of ideas, and racing thoughts that the person cannot or will not control, distractability, psychomotor agitation and increased level of activity, and extreme involvement in pleasurable activities with a high probability of adverse consequences.

Major Depressive Disorder

Experience of major depressive episode

Display five+ symptoms continuously for at least 2 weeks

Cause significant distress in normal areas of person's life.

Not part of bereavement.

Dysthymic Disorder

Long-term, chronic disorder which keeps a person from functioning optimally or feeling as good.

When occurring with MDD; double depression.

Feel depressed most of the day on most days for 2+ years. Feels normal to them.